Public domain
Production. Copper. Disc-type filters which remove moisture from the copper concentrates at the Arthur mill of the Utah Copper Company. Following this treatment the ore is ready for shipment to the Garfield, Utah smelter of the American Smelting and Refining Company
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction. Copper. Disc-type filters which remove moisture from the copper concentrates at the Arthur mill of the Utah Copper Company. Following this treatment the ore is ready for shipment to the Ga. 1940-01-01. Feininger, Andreas, United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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